Outlines of Astronomy |
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Page vii
... errors which , to my regret , subsisted in the former volume , but to remodel it altogether ( though in complete accordance with its original design as a work of ex- planation ) ; to introduce much new matter in the earlier portions of ...
... errors which , to my regret , subsisted in the former volume , but to remodel it altogether ( though in complete accordance with its original design as a work of ex- planation ) ; to introduce much new matter in the earlier portions of ...
Page xv
... errors are corrected which have hitherto escaped notice and public comment as blemishes , —as for example , in some of the ... error and confusion ; and , as the Synoptic Tables of astronomical elements at the end of the work have been ...
... errors are corrected which have hitherto escaped notice and public comment as blemishes , —as for example , in some of the ... error and confusion ; and , as the Synoptic Tables of astronomical elements at the end of the work have been ...
Page 1
... errors . first preparation , therefore , for the course he is about to commence , he must loosen his hold on all crude and hastily adopted notions , and must strengthen himself , by something of an effort and a resolve , for the ...
... errors . first preparation , therefore , for the course he is about to commence , he must loosen his hold on all crude and hastily adopted notions , and must strengthen himself , by something of an effort and a resolve , for the ...
Page 10
... errors for the convenience they afford towards giving clear notions of im- portant truths whose essence they do not affect , by sparing him that contention of mind which fatigues and distresses . We know , for example , that the earth's ...
... errors for the convenience they afford towards giving clear notions of im- portant truths whose essence they do not affect , by sparing him that contention of mind which fatigues and distresses . We know , for example , that the earth's ...
Page 35
... error , without , however , dispelling our illusion . By this we learn , that the sun , when just on the horizon , subtends at our eyes almost exactly the same , and the moon a materially less angle , than when seen at a great alti ...
... error , without , however , dispelling our illusion . By this we learn , that the sun , when just on the horizon , subtends at our eyes almost exactly the same , and the moon a materially less angle , than when seen at a great alti ...
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Common terms and phrases
amount angle angular appear apsides ascertained astronomical atmosphere attraction axis bright calculation celestial circle coincidence comet curve described diameter difference direction disc distance disturbed body disturbing force diurnal diurnal motion double stars earth ecliptic effect ellipse epoch equal equator equinoctial equinox error exact excentricity fixed globe gravity heavens heliocentric hemisphere horizon inclination inequality instance instrument interval Jupiter latitude latter less light longitude lunar magnitude mass mean measure meridian micrometrical moon moon's nearly nebula node normal force nutation object observed orbit parallax parallel perigee perihelion period perturbations phænomena phænomenon planet planetary pole portion position precession precisely proper motion proportion recede recess refraction remarkable respect result revolution revolving right ascension rotation round satellites Saturn seen sidereal sidereal day situation solar sphere spherical stars station sun's suppose surface syzygies tangential force telescope tion Uranus variation velocity visible whole zenith